#include <bits/stdc++.h>
#define N 100010
using namespace std;
int n,app[N];
int main(){
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		int x;
		scanf("%d",&x);
		app[x]++;
	}
	int ans=0;
	for(int i=0;i<N;i++) ans=max(ans,app[i]);
	printf("%d\n",ans);
	return 0;
}